Hermann heimann



Unite STATES ATENT union,

HERMANN HEIMANN, OF COLOGNE, GERMANY.

SEECIFIGATION forming part of Letters Application filed April 10, 1880.

To all whom it may concern Be it known that I, HERMANN HEIMANN, of Cologne, in the German Empire, have invented a new and useful Means for Preventing the Inerustation of Boilers, which is fully set forth and described in the following; specification.

Myinvention relates to the means of preventing the inerustation of boilers; and it consists in adding to the feed-Water. when it is already in the boiler, roasted and ground cof- Patent No. 235,633, dated December 21, 1880.

(N0 specimens.)

or products of decomposition formed by roasting the coffeebeans, and about whose constitution We have at present no reliable information, cause the solid substances, dissolved in the boiler-water, to be precipitated in the shape of powder or mud.

I clain1-- The application of roasted and ground coffee-beans for preventing the incrustation of boilers, substantialiy as described.

In testimony whereof I have signed this fee-beans (seed of the Oofiea- Ambica, L.) in specification in the presence of two subscrib- 3o quantities depending upon the nature and quantity of solid substances dissolved in the feed-Water. The effect of this-addition is to coat the inside of the boiler-plates with a fatty substance, which prevents the adhesion of stone. Besides this, the chemical compounds 1 ing Witnesses.

HEEMANN HEIMANN.

Witnesses G. ADOLF HART,

FRIEDRICH SAPE. 

